*SUPPORT*
IN: lug wif kiki wif dax wif zup OUT: PINK RED PURPLE GREEN
IN: zup lug wif dax OUT: PINK RED GREEN
IN: kiki wif lug OUT: GREEN PURPLE
IN: dax tufa OUT: RED RED
IN: kiki fep kiki wif dax wif dax tufa OUT: PURPLE RED RED RED PURPLE PURPLE
IN: kiki OUT: PURPLE
IN: zup tufa OUT: PINK PINK
IN: kiki lug tufa fep kiki wif kiki OUT: PURPLE GREEN GREEN PURPLE PURPLE PURPLE GREEN GREEN
IN: dax zup OUT: RED PINK
IN: kiki zup fep dax kiki wif dax OUT: PURPLE PINK RED RED PURPLE PURPLE PINK
IN: lug tufa OUT: GREEN GREEN
IN: kiki wif kiki tufa fep kiki OUT: PURPLE PURPLE PURPLE PURPLE PURPLE PURPLE
IN: lug tufa fep zup OUT: GREEN GREEN PINK GREEN GREEN
IN: dax tufa fep lug OUT: RED RED GREEN RED RED

*QUERY*
IN: zup tufa fep zup tufa OUT: PINK PINK PINK PINK PINK PINK
IN: kiki lug OUT: PURPLE GREEN
IN: kiki lug tufa fep zup OUT: PURPLE GREEN GREEN PINK PURPLE GREEN GREEN
IN: zup wif lug tufa OUT: GREEN GREEN PINK
IN: zup kiki OUT: PINK PURPLE
IN: zup OUT: PINK
IN: kiki dax fep lug kiki wif zup OUT: PURPLE RED GREEN PINK PURPLE PURPLE RED
IN: kiki tufa OUT: PURPLE PURPLE
IN: dax kiki tufa OUT: RED PURPLE PURPLE
IN: zup wif kiki wif lug dax tufa OUT: GREEN RED RED PURPLE PINK

*GRAMMAR*
kiki -> PURPLE 
 zup -> PINK 
 dax -> RED 
 lug -> GREEN 
 u1 wif x1 -> [x1] [u1] 
 u1 tufa -> [u1] [u1] 
 x1 fep x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 